WWII doodlebug

The V-1 had a fuselage made mainly from welded sheet steel. A simple pulsejet engine pulsed 50 times per second, and the characteristic buzzing sound gave rise to the names "buzz bomb" or "doodlebug".

WWII Spitfire

The spitfire was used during WWII. The most famous military aircraft of all time and perhaps the most famous of all Spitfires still flying today, MH434 was built in 1943 at Vickers, Castle Bromwich. It first flew on August 1943.

WWII U-boat

The Type VII was the most numerous U-boat type to be involved in the Battle of the Atlantic. Type VII U-boats had a fast ‘crash dive’ speed, which gave them more protection from enemy attacks than the bigger, slower, U-boats.

Combustion engine

The ‘Crank’ and ‘Camshafts’, of an internal combustion engine, control the fuel in and exhaust out. Using either belts or chains, and a series of gears and cams, valves are opened and closed at pre-determined times during each complete cycle.

Jet engine

All jet engines and gas turbines work in roughly the same way (pulling air through an inlet, compressing it, burning it with fuel, and allowing the exhaust to expand through a turbine) they all have five key components: an inlet, a compressor, a combustion chamber, and a turbine.

Oscillating steam engine

The Oscillating steam engine was a simple design that didn’t need valve gears. Instead the cylinder rocks, or oscillates, as the crank-shaft moves the piston, so that ports in the cylinder line up with ports in a fixed plate. They were cheap to make and used on large ships.

Laboratory glassware

Laboratory glassware refers to a variety of equipment, traditionally made of glass, used for scientific experiments and other work in science, especially in chemistry and biology laboratories.

Distillation

Distillation is the process used to separate a pure liquid from a mixture of liquids. Distillation separates liquids by their different boiling points. Fractional distillation separates the mixture of Hydrocarbons in crude oil.

Electrochemical cells

Half cells (electrochemical cells) can transfer chemical energy into electrical energy. Batteries are an example of half cells. It is a spontaneous redox reaction between two different species connected by a salt bridge

Back-arc basins

Back-arc basins are geologic basins, submarine features associated with island arcs and subduction zones. They are found at some convergent plate boundaries, concentrated in the western Pacific Ocean.

French horn

The French horn is a brass instrument made of tubing wrapped into a coil with a flared bell at one end. Three valves control the flow of air in the single horn, which is tuned to F or less commonly B♭. The horn is the third-highest-sounding instrument in the brass family.

Controllers

Controllers, like the game controller shown here, can be programmed to respond to one or more inputs and to control one or more outputs. Using a set of buttons and toggle switches, different commands are sent to a connected device.